(TimezoneTable): Modernize to current tz data.

diff --git a/lib/getdate.y b/lib/getdate.y
index 9dc10483de2f57df1838c5ff6c9b37a737af11e4..933ac0502dec32fff728010b3eaa61df726495ec 100644 (file)
--- a/lib/getdate.y
+++ b/lib/getdate.y
@@ -526,28 +526,27 @@ static TABLE const OtherTable[] = {
     { NULL, 0, 0 }
 };
 
-/* The timezone table. */
+/* The timezone table.  This table is necessarily incomplete, as time
+   zone abbreviations are ambiguous; e.g. Australians interpret "EST"
+   as Eastern time in Australia, not as US Eastern Standard Time.
+   You cannot rely on getdate to handle arbitrary time zone
+   abbreviations; use numeric abbreviations like `-0500' instead.  */
 static TABLE const TimezoneTable[] = {
     { "gmt",   tZONE,     HOUR ( 0) }, /* Greenwich Mean */
     { "ut",    tZONE,     HOUR ( 0) }, /* Universal (Coordinated) */
     { "utc",   tZONE,     HOUR ( 0) },
     { "wet",   tZONE,     HOUR ( 0) }, /* Western European */
+    { "west",  tDAYZONE,  HOUR ( 0) }, /* Western European Summer */
     { "bst",   tDAYZONE,  HOUR ( 0) }, /* British Summer */
-    { "wat",   tZONE,     HOUR ( 1) }, /* West Africa */
-    { "at",    tZONE,     HOUR ( 2) }, /* Azores */
-#if    0
-    /* For completeness.  BST is also British Summer, and GST is
-     * also Guam Standard. */
-    { "bst",   tZONE,     HOUR ( 3) }, /* Brazil Standard */
-    { "gst",   tZONE,     HOUR ( 3) }, /* Greenland Standard */
-#endif
-#if 0
-    { "nft",   tZONE,     HOUR (3.5) },        /* Newfoundland */
-    { "nst",   tZONE,     HOUR (3.5) },        /* Newfoundland Standard */
-    { "ndt",   tDAYZONE,  HOUR (3.5) },        /* Newfoundland Daylight */
-#endif
+    { "art",   tZONE,     HOUR ( 3) }, /* Argentina */
+    { "brt",   tZONE,     HOUR ( 3) }, /* Brazil */
+    { "brst",  tDAYZONE,  HOUR ( 3) }, /* Brazil Summer */
+    { "nst",   tZONE,     HOUR ( 3) + 30 },    /* Newfoundland Standard */
+    { "ndt",   tDAYZONE,  HOUR ( 3) + 30 },    /* Newfoundland Daylight */
     { "ast",   tZONE,     HOUR ( 4) }, /* Atlantic Standard */
     { "adt",   tDAYZONE,  HOUR ( 4) }, /* Atlantic Daylight */
+    { "clt",   tZONE,     HOUR ( 4) }, /* Chile */
+    { "clst",  tDAYZONE,  HOUR ( 4) }, /* Chile Summer */
     { "est",   tZONE,     HOUR ( 5) }, /* Eastern Standard */
     { "edt",   tDAYZONE,  HOUR ( 5) }, /* Eastern Daylight */
     { "cst",   tZONE,     HOUR ( 6) }, /* Central Standard */
@@ -556,58 +555,33 @@ static TABLE const TimezoneTable[] = {
     { "mdt",   tDAYZONE,  HOUR ( 7) }, /* Mountain Daylight */
     { "pst",   tZONE,     HOUR ( 8) }, /* Pacific Standard */
     { "pdt",   tDAYZONE,  HOUR ( 8) }, /* Pacific Daylight */
-    { "yst",   tZONE,     HOUR ( 9) }, /* Yukon Standard */
-    { "ydt",   tDAYZONE,  HOUR ( 9) }, /* Yukon Daylight */
+    { "akst",  tZONE,     HOUR ( 9) }, /* Alaska Standard */
+    { "akdt",  tDAYZONE,  HOUR ( 9) }, /* Alaska Daylight */
     { "hst",   tZONE,     HOUR (10) }, /* Hawaii Standard */
-    { "hdt",   tDAYZONE,  HOUR (10) }, /* Hawaii Daylight */
-    { "cat",   tZONE,     HOUR (10) }, /* Central Alaska */
-    { "ahst",  tZONE,     HOUR (10) }, /* Alaska-Hawaii Standard */
-    { "nt",    tZONE,     HOUR (11) }, /* Nome */
-    { "idlw",  tZONE,     HOUR (12) }, /* International Date Line West */
+    { "hast",  tZONE,     HOUR (10) }, /* Hawaii-Aleutian Standard */
+    { "hadt",  tDAYZONE,  HOUR (10) }, /* Hawaii-Aleutian Daylight */
+    { "sst",   tZONE,     HOUR (12) }, /* Samoa Standard */
+    { "wat",   tZONE,     -HOUR (1) }, /* West Africa */
     { "cet",   tZONE,     -HOUR (1) }, /* Central European */
+    { "cest",  tDAYZONE,  -HOUR (1) }, /* Central European Summer */
     { "met",   tZONE,     -HOUR (1) }, /* Middle European */
-    { "mewt",  tZONE,     -HOUR (1) }, /* Middle European Winter */
+    { "mez",   tZONE,     -HOUR (1) }, /* Middle European */
     { "mest",  tDAYZONE,  -HOUR (1) }, /* Middle European Summer */
     { "mesz",  tDAYZONE,  -HOUR (1) }, /* Middle European Summer */
-    { "swt",   tZONE,     -HOUR (1) }, /* Swedish Winter */
-    { "sst",   tDAYZONE,  -HOUR (1) }, /* Swedish Summer */
-    { "fwt",   tZONE,     -HOUR (1) }, /* French Winter */
-    { "fst",   tDAYZONE,  -HOUR (1) }, /* French Summer */
-    { "eet",   tZONE,     -HOUR (2) }, /* Eastern Europe, USSR Zone 1 */
-    { "bt",    tZONE,     -HOUR (3) }, /* Baghdad, USSR Zone 2 */
-#if 0
-    { "it",    tZONE,     -HOUR (3.5) },/* Iran */
-#endif
-    { "zp4",   tZONE,     -HOUR (4) }, /* USSR Zone 3 */
-    { "zp5",   tZONE,     -HOUR (5) }, /* USSR Zone 4 */
-#if 0
-    { "ist",   tZONE,     -HOUR (5.5) },/* Indian Standard */
-#endif
-    { "zp6",   tZONE,     -HOUR (6) }, /* USSR Zone 5 */
-#if    0
-    /* For completeness.  NST is also Newfoundland Standard, and SST is
-     * also Swedish Summer. */
-    { "nst",   tZONE,     -HOUR (6.5) },/* North Sumatra */
-    { "sst",   tZONE,     -HOUR (7) }, /* South Sumatra, USSR Zone 6 */
-#endif /* 0 */
-    { "wast",  tZONE,     -HOUR (7) }, /* West Australian Standard */
-    { "wadt",  tDAYZONE,  -HOUR (7) }, /* West Australian Daylight */
-#if 0
-    { "jt",    tZONE,     -HOUR (7.5) },/* Java (3pm in Cronusland!) */
-#endif
-    { "cct",   tZONE,     -HOUR (8) }, /* China Coast, USSR Zone 7 */
-    { "jst",   tZONE,     -HOUR (9) }, /* Japan Standard, USSR Zone 8 */
-#if 0
-    { "cast",  tZONE,     -HOUR (9.5) },/* Central Australian Standard */
-    { "cadt",  tDAYZONE,  -HOUR (9.5) },/* Central Australian Daylight */
-#endif
-    { "east",  tZONE,     -HOUR (10) },        /* Eastern Australian Standard */
-    { "eadt",  tDAYZONE,  -HOUR (10) },        /* Eastern Australian Daylight */
-    { "gst",   tZONE,     -HOUR (10) },        /* Guam Standard, USSR Zone 9 */
-    { "nzt",   tZONE,     -HOUR (12) },        /* New Zealand */
+    { "eet",   tZONE,     -HOUR (2) }, /* Eastern European */
+    { "eest",  tDAYZONE,  -HOUR (2) }, /* Eastern European Summer */
+    { "cat",   tZONE,     -HOUR (2) }, /* Central Africa */
+    { "sast",  tZONE,     -HOUR (2) }, /* South Africa Standard */
+    { "eat",   tZONE,     -HOUR (3) }, /* East Africa */
+    { "msk",   tZONE,     -HOUR (3) }, /* Moscow */
+    { "msd",   tDAYZONE,  -HOUR (3) }, /* Moscow Daylight */
+    { "ist",   tZONE,     - (HOUR (5) + 30) }, /* India Standard */
+    { "sgt",   tZONE,     -HOUR (8) }, /* Singapore */
+    { "kst",   tZONE,     -HOUR (9) }, /* Korea Standard */
+    { "jst",   tZONE,     -HOUR (9) }, /* Japan Standard */
+    { "gst",   tZONE,     -HOUR (10) },        /* Guam Standard */
     { "nzst",  tZONE,     -HOUR (12) },        /* New Zealand Standard */
     { "nzdt",  tDAYZONE,  -HOUR (12) },        /* New Zealand Daylight */
-    { "idle",  tZONE,     -HOUR (12) },        /* International Date Line East */
     {  NULL, 0, 0  }
 };